Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2021 Arm Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #include "src/common/cpuinfo/CpuModel.h" |
| 25 | |
| 26 | namespace arm_compute |
| 27 | { |
| 28 | namespace cpuinfo |
| 29 | { |
| 30 | std::string cpu_model_to_string(CpuModel model) |
| 31 | { |
| 32 | switch(model) |
| 33 | { |
| 34 | #define X(MODEL) \ |
| 35 | case CpuModel::MODEL: \ |
| 36 | return #MODEL; |
| 37 | ARM_COMPUTE_CPU_MODEL_LIST |
| 38 | #undef X |
| 39 | default: |
| 40 | { |
| 41 | return std::string("GENERIC"); |
| 42 | } |
| 43 | }; |
| 44 | } |
| 45 | |
| 46 | bool model_supports_fp16(CpuModel model) |
| 47 | { |
| 48 | switch(model) |
| 49 | { |
| 50 | case CpuModel::GENERIC_FP16: |
| 51 | case CpuModel::GENERIC_FP16_DOT: |
| 52 | case CpuModel::A55r1: |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 53 | case CpuModel::A510: |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 54 | case CpuModel::X1: |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 55 | case CpuModel::V1: |
| 56 | case CpuModel::A64FX: |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 57 | return true; |
| 58 | default: |
| 59 | return false; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | bool model_supports_dot(CpuModel model) |
| 64 | { |
| 65 | switch(model) |
| 66 | { |
| 67 | case CpuModel::GENERIC_FP16_DOT: |
| 68 | case CpuModel::A55r1: |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 69 | case CpuModel::A510: |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 70 | case CpuModel::X1: |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 71 | case CpuModel::V1: |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 72 | return true; |
| 73 | default: |
| 74 | return false; |
| 75 | } |
| 76 | } |
| 77 | |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 78 | CpuModel midr_to_model(uint32_t midr) |
| 79 | { |
| 80 | CpuModel model = CpuModel::GENERIC; |
| 81 | |
| 82 | // Unpack variant and CPU ID |
| 83 | const int implementer = (midr >> 24) & 0xFF; |
| 84 | const int variant = (midr >> 20) & 0xF; |
| 85 | const int cpunum = (midr >> 4) & 0xFFF; |
| 86 | |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 87 | // Only CPUs we have code paths for are detected. All other CPUs can be safely classed as "GENERIC" |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 88 | if(implementer == 0x41) // Arm CPUs |
| 89 | { |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 90 | switch(cpunum) |
| 91 | { |
| 92 | case 0xd03: // A53 |
| 93 | case 0xd04: // A35 |
| 94 | model = CpuModel::A53; |
| 95 | break; |
| 96 | case 0xd05: // A55 |
| 97 | if(variant != 0) |
| 98 | { |
| 99 | model = CpuModel::A55r1; |
| 100 | } |
| 101 | else |
| 102 | { |
| 103 | model = CpuModel::A55r0; |
| 104 | } |
| 105 | break; |
| 106 | case 0xd09: // A73 |
| 107 | model = CpuModel::A73; |
| 108 | break; |
| 109 | case 0xd0a: // A75 |
| 110 | if(variant != 0) |
| 111 | { |
| 112 | model = CpuModel::GENERIC_FP16_DOT; |
| 113 | } |
| 114 | else |
| 115 | { |
| 116 | model = CpuModel::GENERIC_FP16; |
| 117 | } |
| 118 | break; |
| 119 | case 0xd06: // A65 |
| 120 | case 0xd0b: // A76 |
| 121 | case 0xd0c: // N1 |
| 122 | case 0xd0d: // A77 |
| 123 | case 0xd0e: // A76AE |
| 124 | case 0xd41: // A78 |
| 125 | case 0xd42: // A78AE |
| 126 | case 0xd4a: // E1 |
| 127 | model = CpuModel::GENERIC_FP16_DOT; |
| 128 | break; |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 129 | case 0xd40: // V1 |
| 130 | model = CpuModel::V1; |
| 131 | break; |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 132 | case 0xd44: // X1 |
| 133 | model = CpuModel::X1; |
| 134 | break; |
| 135 | case 0xd46: |
Georgios Pinitas | 4ee8b15 | 2021-07-16 16:16:43 +0100 | [diff] [blame] | 136 | model = CpuModel::A510; |
| 137 | break; |
| 138 | default: |
| 139 | model = CpuModel::GENERIC; |
| 140 | break; |
| 141 | } |
| 142 | } |
| 143 | else if(implementer == 0x46) |
| 144 | { |
| 145 | switch(cpunum) |
| 146 | { |
| 147 | case 0x001: // A64FX |
| 148 | model = CpuModel::A64FX; |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 149 | break; |
| 150 | default: |
| 151 | model = CpuModel::GENERIC; |
| 152 | break; |
| 153 | } |
| 154 | } |
| 155 | else if(implementer == 0x48) |
| 156 | { |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 157 | switch(cpunum) |
| 158 | { |
| 159 | case 0xd40: // A76 |
| 160 | model = CpuModel::GENERIC_FP16_DOT; |
| 161 | break; |
| 162 | default: |
| 163 | model = CpuModel::GENERIC; |
| 164 | break; |
| 165 | } |
| 166 | } |
| 167 | else if(implementer == 0x51) |
| 168 | { |
Georgios Pinitas | 08302c1 | 2021-06-09 10:08:27 +0100 | [diff] [blame] | 169 | switch(cpunum) |
| 170 | { |
| 171 | case 0x800: // A73 |
| 172 | model = CpuModel::A73; |
| 173 | break; |
| 174 | case 0x801: // A53 |
| 175 | model = CpuModel::A53; |
| 176 | break; |
| 177 | case 0x803: // A55r0 |
| 178 | model = CpuModel::A55r0; |
| 179 | break; |
| 180 | case 0x804: // A76 |
| 181 | model = CpuModel::GENERIC_FP16_DOT; |
| 182 | break; |
| 183 | case 0x805: // A55r1 |
| 184 | model = CpuModel::A55r1; |
| 185 | break; |
| 186 | default: |
| 187 | model = CpuModel::GENERIC; |
| 188 | break; |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | return model; |
| 193 | } |
| 194 | } // namespace cpuinfo |
| 195 | } // namespace arm_compute |